Morozko, the frost-demon or winter-king, is an ambiguous supernatural figure who acts as both mentor and romantic interest to Vasya. As an ancient chyert, he embodies the fading power of Russia’s old, pagan world. His strength is directly tied to human belief and memory, and in a Moscow increasingly dominated by church bells and Christian orthodoxy, he feels his existence waning. This vulnerability is his initial motivation for developing a relationship with Vasya. He creates the sapphire talisman and gives it to her father to be passed to her when she is ready, binding her life force and powerful lineage to his own to prevent himself from fading into oblivion. This act is one of self-preservation, yet it also places him in the role of her unseen guardian, creating a bond that is both parasitic and protective.

Morozko’s character is defined by the conflict between his immortal, inhuman nature and the mortal emotions that his connection to Vasya awakens within him. As the death-god, he is often cold, detached, and pragmatic, as shown when he calmly facilitates Pyotr’s sacrificial death to stop the bear. He is dismissive of Vasya’s desire for freedom, telling her, “Your world does not care what you want” (234), reflecting a timeless, fatalistic perspective. However, his interactions with her betray a growing tenderness and a protective instinct that transcends his original purpose. He teaches her to fight, saves her from freezing to death, and intervenes to protect her during the bandits’ ambush. This internal struggle culminates when he admits his love for her, a feeling antithetical to his immortal being. Polunochnitsa observes that the talisman “pulled him closer and closer to mortality, so that he was hungry for life, more than a man and less than a demon” (333).

Ultimately, Morozko is a tragic figure, caught between two worlds and belonging to neither. He cannot fully embrace the human world without sacrificing his immortality, yet he can no longer remain the detached winter-king of old. When Vasya destroys the talisman, she severs their magical bond and breaks his power, leaving him a diminished entity. In their final moments together in this novel, he acknowledges that he cannot be both alive and immortal, choosing to remain a part of the natural cycle of winter and death. His departure is a loss for Vasya and symbolizes one further step in the melancholic retreat of the old magic from the human world.

Kasyan Lutovich is the novel’s primary antagonist, a round and duplicitous character whose charming facade as a provincial boyar conceals his true identity as Kaschei the Deathless, a powerful sorcerer from Russian folklore. His initial appearance is a masterful performance; he presents himself to Dmitrii Ivanovich as a loyal lord suffering from bandit raids, skillfully manipulating the Grand Prince’s desire for heroic action. This persona allows him to infiltrate the highest levels of Muscovite society, placing him in a position to orchestrate its downfall from within. Kasyan’s ability to project an image of noble strength while secretly commanding the very bandits he decries makes him an effective villain. His actions are calculated and patient, revealing a strategic mind that uses deception and manipulation as his primary weapons.

Kasyan’s motivations are twofold: a lust for power and a deep, ancient bitterness. He seeks to usurp Dmitrii and seize control of Moscow, using Chelubey’s feigned embassy and the chaos of the fire to create a power vacuum he can fill. Beyond this political ambition, however, lies a personal history intertwined with Morozko and Vasya’s grandmother, Tamara. It is revealed that his immortality is a curse born from a desperate attempt to cheat death by binding his life to Tamara’s. This backstory provides psychological depth, framing his cruelty as more than simple malevolence; it is the product of centuries of frustrated desire and unnatural existence. His fixation on Vasya stems from her resemblance to Tamara and her inheritance of her grandmother’s magical abilities, which he seeks to control. His attempt to marry Vasya is born of a desire to possess her power and perhaps find a replacement for the life force he lost.

As an antagonist, Kasyan is a formidable intellectual and magical foil to Vasya. Where Vasya’s power is innate, instinctual, and tied to the natural world, Kasyan’s is derived from artifice, illusion, and the subjugation of others, including the firebird and the upyri. He represents a corrupt and parasitic form of magic, one that drains life rather than coexisting with it. His ultimate defeat comes through Vasya’s unique understanding of the bonds that tie the magical world together. By recognizing his life is tied to the ghost of her grandmother and destroying the necklace that contains it, Vasya undoes his magic at its source, exposing him as a withered, pathetic figure before he crumbles to dust. His fall underscores the novel’s suggestion that true power cannot be sustained through coercion and illusion alone.

Sasha, Vasya’s older brother, serves as the novel’s deuteragonist. He is a round and dynamic character, embodying the central conflict between duty to family, faith, and state. As Brother Aleksandr Peresvet, he is a revered warrior-monk and a trusted advisor to the Grand Prince, Dmitrii Ivanovich. This position places him at the nexus of political and religious power in Moscow. His character is defined by a deep-seated piety and a strong moral compass, but these principles are severely tested upon Vasya’s arrival. Her appearance forces him into a web of deceit, compelling him to lie to the prince he has sworn to serve in order to protect his sister. This decision precipitates a profound internal crisis, as he must constantly reconcile his love for Vasya with his belief that her actions are sinful and dangerous.

Sasha’s relationship with his siblings, Vasya and Olga, highlights the different forms that familial loyalty can take. While Olga represents adherence to social order as a form of protection, Sasha chooses to navigate the dangerous space between societal rules and Vasya’s rebellious nature. He simultaneously chastises Vasya for her Defiance of Gender Roles in a Patriarchal Society while risking his own life and reputation to shield her. This protective instinct is complicated by his 10-year absence from their home, which has left him with an idealized memory of Vasya, his “little frog,” that clashes with the fiercely independent woman she has become. He struggles to understand her choices, viewing them through the patriarchal lens of his time, yet he cannot bring himself to abandon her. His decision to support her lie is a pivotal moment, marking a shift in his allegiance from abstract principles toward a more personal, albeit compromising, loyalty.

As the plot unfolds, Sasha is stripped of his status and power. Kasyan’s machinations expose Sasha’s lie, leading to his imprisonment and disgrace. This fall from grace is a direct consequence of his choice to protect Vasya. However, in the final battle for Moscow, he reclaims his heroic stature, fighting alongside Dmitrii not just as a monk or advisor, but as a loyal cousin and a warrior defending his home. His journey from a confident figure of authority to a conflicted protector and finally to a pardoned hero illustrates the novel’s exploration of the complex, often contradictory, nature of honor and duty.

Dmitrii Ivanovich, the Grand Prince of Moscow, is a round supporting character who represents the burgeoning political power of a more centralized and Christian Russia. He is characterized by his “ferocious good humor” (22), youthful charisma, and ambition, but also by a certain impulsiveness and vanity that make him susceptible to manipulation. His rule is precarious, caught between the threat of the weakening Golden Horde and the ambitions of rival Russian princes and his own boyars. This political pressure informs his actions; he is eager to prove his strength but wary of engaging in a war he might not win. His close relationship with his cousin Sasha is crucial, as he relies heavily on the monk for both political and moral guidance, treating him as a trusted advisor in a court full of schemers.

His perception of Vasya undergoes a dramatic transformation that highlights the rigid gender norms of his society. He is immediately taken with “Vasilii Petrovich,” the brave and gifted young boy who succeeds where his own men failed. He showers Vasya with praise and promises of advancement, seeing in her a reflection of the heroic ideal he values. However, upon the revelation of her true gender, his admiration instantly turns to fury and disgust. He feels personally betrayed by the deception, viewing Vasya not as a hero but as a “liar” and a witch who has made a fool of him. This reaction demonstrates his inability to reconcile Vasya’s heroic actions with her female identity; in his world, a woman cannot possess the virtues he admired in the boy. His swift and harsh judgment reveals the deeply ingrained patriarchal structures that Vasya seeks to escape.

Olga, Princess of Serpukhov and Vasya’s older sister, is a foil to Vasya. She is a round but largely static character who embodies the traditional role of a highborn woman in medieval Russia. Whereas Vasya flees the confines of the terem, Olga has embraced it, learning to wield power within its restrictive boundaries. Her life is a gilded cage in which she navigates court politics, manages a household, and secures her family’s position through marriage and childbearing. She represents a form of female agency that relies on adherence to social norms rather than defiance of them. Her initial interactions with Vasya are marked by a mixture of love and stern disapproval; she is horrified by Vasya’s male attire and reckless behavior, seeing them as a threat not only to Vasya herself but to the entire family’s precarious social standing.

Despite her rigid adherence to convention, Olga’s love for her family is her driving motivation. She harbors deep affection for Sasha and Vasya, but this love is constantly in conflict with her fear of scandal and her duty to her husband and children. When Vasya’s deception is revealed, Olga’s immediate reaction is one of anger at the danger Vasya has brought upon them, even threatening to denounce her sister to save her own children. However, the traumatic events of the fire and the loss of her own child break down her hardened exterior. In the end, faced with the magical reality of Marya’s “second sight” and Vasya’s world, Olga chooses solidarity. Her final acceptance of Vasya, acknowledging, “I love you both. Still. Always” (346), marks a significant, if subtle, shift. She does not condone Vasya’s path but chooses to stand with her family against the dangers of their world, recognizing a strength in unity that transcends societal rules.

Konstantin is a zealous priest and minor antagonist whose fanaticism and hatred of Vasya is weaponized by Kasyan. He is described as “golden-haired” and charismatic, with a voice that compels attention and seduces the listener. He is also a skilled painter, channeling his talent toward icons that promote the Christian faith. 

Having fled Lesnaya Zemlya after his defeat at Vasya’s hands in the previous novel, he arrives in Moscow as a revered holy man. His character is driven by a toxic combination of religious piety and a repressed, obsessive desire for Vasya, whom he labels a “witch” to justify his own conflicted feelings. He views the old world, pagan traditions as needing to be purged from society, representing a fanatical perspective in which Russia must shift entirely to Christianity and leave behind its old beliefs. This zealotry makes him an ideal pawn for Kasyan, who manipulates Konstantin’s hatred for Vasya to orchestrate the kidnapping of Marya, setting the stage for the novel’s climax. Konstantin represents the dangers of dogmatic faith and the destructive potential of self-deception.